The nature of the narrow peaks in the $e^+e^-$ pair production in heavy ion collisions
Abstract
Experiments on heavy ion collisions performed at GSI (Darmstadt, Germany) revealed series of narrow quasi-equidistant peaks in the energy distribution of the produced $e^+e^-$ pairs in the range from 1.5 to 2.0 MeV which are ascribed to the pair coupling with a strong magnetic field generated by fast nuclei with $Z\sim90$. The pair is captured in the magnetic trap with dimensions of $10^{-10}$ cm and average field $\sim 5 \cdot 10^{12}$ Gs and, in turn, confines this magnetic field in the trap during $\sim 10^{-19}$ s due to the Alfven effect of magnetic field "freezing-in" into the conducting medium.
- Publication:
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arXiv e-prints
- Pub Date:
- July 2011
- DOI:
- 10.48550/arXiv.1107.4546
- arXiv:
- arXiv:1107.4546
- Bibcode:
- 2011arXiv1107.4546F
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 8 pages, 1 figure